The protective effects of helmets in skiers and snowboarders

We failed to incorporate a late change into the print version (and its online pdf version) of this editorial by Gerhard Ruedl and colleagues (BMJ 2011;342:d857; doi:10.1136/bmj.d857). The third sentence of the second paragraph should have read: “In addition, 15% of neurosurgeons in Germany, Switzerland, and Austria bought a helmet after the fatal collision involving the German politician, possibly as a result of the increased media coverage.”